Bicycle Tail Light Bicycle Light Smart Brake Warning USB Rechargeable 72-hour continuous lighting IPX5 waterproof vibration-resistant lightweight day and night use Hiking Cycling Commuting to school Easy to install _________________________________________ ☆☆☆☆Thank you for viewing!☆☆☆☆ Thank you very much for choosing us from among the many items on sale! Please be sure to read the profile before purchasing. #RiichanStore ↓↓↓Handling miscellaneous goods and accessories↓↓↓ #RiichanStore's list of household goods _________________________________________ Equipped with a smart chip Compatible with seat tube diameters of 22mm to 35mm USB rechargeable Instant purchase OK! Brand new, unused! First come, first served! ☆10-20 005610